Compositions – Preservative agents – Anti-corrosion
Reexamination Certificate
2004-12-21
2008-10-14
Anthony, Joseph D (Department: 1796)
Compositions
Preservative agents
Anti-corrosion
C252S074000, C252S075000, C252S076000
Reexamination Certificate
active
07435359
ABSTRACT:
An anti-corrosion composition for use with a liquid or the liquid resulting from the addition of components is provided. The composition can include an acid, a phosphate ester of an alcohol, an inorganic phosphate, a salt of polyacrylates and a salt of an organophosphonate. The composition can be used with anti-freeze compositions or heat transfer fluids and advantageously exhibits enhanced corrosion resistance properties. A heat transfer medium is also provide, having water, glycol, an ester of a phosphoric acid, a phosphate salt and an acid, wherein the medium is a GRAS composition capable of satisfying ASTM 1384 and 4340.
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Anthony Joseph D
Hercules Chemical Company Incorporated
Stroock & Stroock & Lavan LLP
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